Cintas Corporation (NASDAQ:CTAS) posted stronger-than-expected first-quarter sales and expanding margins on Wednesday, prompting the uniform rental giant to lift its full-year revenue and earnings outlook despite profit coming in line with forecasts. The firm reported first-quarter earnings per share of $1.20, in line with the analyst consensus estimate. Quarterly sales of$2.718 billion (+8.7% year over year), beating the Street view of $2.698 billion. Revenue growth in the quarter was positively impacte ...